OMC Ballast resist wire

[Junkiexp]

Hi all.

I have a '88 Capri with the OMC 3.0 engine in it.

This weekend im planning to convert to a Petronix II electronic ignition.
I'm also using a Flame Thrower II coil.

My old coil tells me that it have to work with a external resistor.

The manual of the new coils saids that if it will be used with petronix II ingnition, the external resistor may not be used.

OMC is not making use of resistor, but they used a resistor wire :

It is the red purple wire, running from the positive side of the coil to the alternator.
Is this one easy to replace ?

What kind of wire do i have to use ?

 

[Don S]

Re: OMC Ballast resist wire

OMC didn't use a resistor, or a resistor wire on that engine. Your old coil was the wrong one, it should have been one with an internal resistor.

 

[Junkiexp]

Re: OMC Ballast resist wire

OMC didn't use a resistor, or a resistor wire on that engine. Your old coil was the wrong one, it should have been one with an internal resistor.

Thanks Don, are you very sure of that ?

Because it rans pretty good during last season.
It had only startproblems when the motor was warm.

 

[Don S]

Re: OMC Ballast resist wire

Disconnect the Pur/R wire from the coil, and the pur wire from the alternator, Then with an OHM meter, check the resistance of the wire. Then you will know for sure.

 

[Junkiexp]

Re: OMC Ballast resist wire

Disconnect the Pur/R wire from the coil, and the pur wire from the alternator, Then with an OHM meter, check the resistance of the wire. Then you will know for sure.

I will do that, thanks Don !

 

[bruceb58]

Re: OMC Ballast resist wire

Or ground the negative side of the coil(or just close the points) and measure the voltage at the positive terminal. If it drops a couple volts, you have a resistor somewhere.